| /* |
| * Copyright (C) 2003 - 2016 Sony Corporation |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| #ifndef _LDAC_H |
| #define _LDAC_H |
| |
| #include "ldaclib.h" |
| #include "struct_ldac.h" |
| |
| |
| |
| |
| |
| /*************************************************************************************************** |
| Macro Definitions |
| ***************************************************************************************************/ |
| /* Configuration */ |
| #define LDAC_SYNCWORDBITS 8 |
| #define LDAC_SYNCWORD 0xAA |
| /** Sampling Rate **/ |
| #define LDAC_SMPLRATEBITS 3 |
| #define LDAC_NSMPLRATEID 6 |
| #define LDAC_NSUPSMPLRATEID 4 |
| #define LDAC_SMPLRATEID_0 0x0 |
| #define LDAC_SMPLRATEID_1 0x1 |
| #define LDAC_SMPLRATEID_2 0x2 |
| #define LDAC_SMPLRATEID_3 0x3 |
| /** Channel **/ |
| #define LDAC_CHCONFIG1BITS 3 |
| #define LDAC_CHCONFIG2BITS 2 |
| #define LDAC_NCHCONFIGID 8 |
| #define LDAC_MAXNCH 2 |
| #define LDAC_CHANNEL_1CH 1 |
| #define LDAC_CHANNEL_2CH 2 |
| #define LDAC_CHCONFIGID_MN 0 |
| #define LDAC_CHCONFIGID_DL 1 |
| #define LDAC_CHCONFIGID_ST 2 |
| /** Frame Length **/ |
| #define LDAC_FRAMELEN1BITS 11 |
| #define LDAC_FRAMELEN2BITS 9 |
| #define LDAC_MAXNBYTES 1024 |
| #define LDAC_MAXSUPNBYTES 512 |
| #define LDAC_MINSUPNBYTES 22 |
| /** Frame Status **/ |
| #define LDAC_FRAMESTATBITS 2 |
| #define LDAC_FRMSTAT_LEV_0 0 |
| #define LDAC_FRMSTAT_LEV_1 1 |
| #define LDAC_FRMSTAT_LEV_2 2 |
| #define LDAC_FRMSTAT_LEV_3 3 |
| /** Other **/ |
| #define LDAC_RESERVE1BITS 2 |
| #define LDAC_RESERVE2BITS 5 |
| #define LDAC_DUMMYCODE 0x00 |
| |
| /* Signal Processing */ |
| #define LDAC_NFRAME 2 |
| #define LDAC_NSFTSTEP 5 |
| /** Frame Samples (log base 2 of) **/ |
| #define LDAC_NUMLNN 2 |
| #define LDAC_MAXLNN 8 |
| #define LDAC_2FSLNN 8 |
| #define LDAC_1FSLNN 7 |
| /** Frame Samples **/ |
| #define LDAC_MAXLSU (1<<LDAC_MAXLNN) |
| #define LDAC_2FSLSU (1<<LDAC_2FSLNN) |
| #define LDAC_1FSLSU (1<<LDAC_1FSLNN) |
| /** Band **/ |
| #define LDAC_MAXNBANDS 16 |
| #define LDAC_2FSNBANDS 16 |
| #define LDAC_1FSNBANDS 12 |
| /** QU **/ |
| #define LDAC_MAXGRADQU 50 |
| #define LDAC_MAXNQUS 34 |
| #define LDAC_2FSNQUS 34 |
| #define LDAC_1FSNQUS 26 |
| #define LDAC_MAXNSPS 16 |
| /** Frame Status Analysis **/ |
| #define LDAC_NSP_PSEUDOANA 128 |
| #define LDAC_NSP_LOWENERGY 12 |
| #define LDAC_TH_ZCROSNUM 90 |
| #define LDAC_MAXCNT_FRMANA 10 |
| |
| /* Stream Syntax */ |
| #define LDAC_BLKID_MONO 0 |
| #define LDAC_BLKID_STEREO 1 |
| #define LDAC_FILLCODE 0x01 |
| /** Band Info **/ |
| #define LDAC_NBANDBITS 4 |
| #define LDAC_BAND_OFFSET 2 |
| /** Gradient Data **/ |
| #define LDAC_GRADMODEBITS 2 |
| #define LDAC_GRADOSBITS 5 |
| #define LDAC_MAXGRADOS 31 |
| #define LDAC_DEFGRADOSH 31 |
| #define LDAC_GRADQU0BITS 6 |
| #define LDAC_GRADQU1BITS 5 |
| #define LDAC_DEFGRADQUH 26 |
| #define LDAC_NADJQUBITS 5 |
| #define LDAC_MAXNADJQUS 32 |
| /** Scale Factor Data **/ |
| #define LDAC_IDSFBITS 5 |
| #define LDAC_NIDSF 32 |
| #define LDAC_SFCMODEBITS 1 |
| #define LDAC_NSFCMODE 2 |
| #define LDAC_SFCWTBLBITS 3 |
| #define LDAC_NSFCWTBL 8 |
| #define LDAC_SFCBLENBITS 2 |
| #define LDAC_MINSFCBLEN_0 3 |
| #define LDAC_MAXSFCBLEN_0 6 |
| #define LDAC_MINSFCBLEN_1 2 |
| #define LDAC_MAXSFCBLEN_1 5 |
| #define LDAC_MINSFCBLEN_2 2 |
| #define LDAC_MAXSFCBLEN_2 5 |
| /** Spectrum/Residual Data **/ |
| #define LDAC_NIDWL 16 |
| #define LDAC_MINIDWL1 1 |
| #define LDAC_MAXIDWL1 15 |
| #define LDAC_MAXIDWL2 15 |
| #define LDAC_2DIMSPECBITS 3 |
| #define LDAC_N2DIMSPECENCTBL 16 |
| #define LDAC_N2DIMSPECDECTBL 8 |
| #define LDAC_4DIMSPECBITS 7 |
| #define LDAC_N4DIMSPECENCTBL 256 |
| #define LDAC_N4DIMSPECDECTBL 81 |
| /** Bit Operation **/ |
| #define LDAC_LOC_SHIFT 3 |
| #define LDAC_LOC_MASK 0x7 |
| #define LDAC_BYTESIZE 8 |
| #define LDAC_MAXBITNUM 8192 |
| |
| /* Flag */ |
| #define LDAC_FLAGBITS 1 |
| #define LDAC_TRUE 1 |
| #define LDAC_FALSE 0 |
| |
| /* Mode */ |
| #define LDAC_MODE_0 0 |
| #define LDAC_MODE_1 1 |
| #define LDAC_MODE_2 2 |
| #define LDAC_MODE_3 3 |
| |
| /*************************************************************************************************** |
| Structure Definitions |
| ***************************************************************************************************/ |
| typedef struct _sfinfo_ldac SFINFO; |
| typedef struct _config_info_ldac CFG; |
| typedef struct _audio_block_ldac AB; |
| typedef struct _audio_channel_ldac AC; |
| typedef struct _audio_channel_sub_ldac ACSUB; |
| |
| /* Configuration Information Structure */ |
| struct _config_info_ldac { |
| int syncword; |
| int smplrate_id; |
| int chconfig_id; |
| int ch; |
| int frame_length; |
| int frame_status; |
| }; |
| |
| /* Audio Channel (AC) Sub Structure */ |
| #ifndef _32BIT_FIXED_POINT |
| struct _audio_channel_sub_ldac { |
| SCALAR a_time[LDAC_MAXLSU*LDAC_NFRAME]; |
| SCALAR a_spec[LDAC_MAXLSU]; |
| }; |
| #else /* _32BIT_FIXED_POINT */ |
| struct _audio_channel_sub_ldac { |
| INT32 a_time[LDAC_MAXLSU*LDAC_NFRAME]; |
| INT32 a_spec[LDAC_MAXLSU]; |
| }; |
| #endif /* _32BIT_FIXED_POINT */ |
| |
| /* Audio Channel (AC) Structure */ |
| struct _audio_channel_ldac { |
| int ich; |
| int frmana_cnt; |
| int sfc_mode; |
| int sfc_bitlen; |
| int sfc_offset; |
| int sfc_weight; |
| int a_idsf[LDAC_MAXNQUS]; |
| int a_idwl1[LDAC_MAXNQUS]; |
| int a_idwl2[LDAC_MAXNQUS]; |
| int a_addwl[LDAC_MAXNQUS]; |
| int a_tmp[LDAC_MAXNQUS]; |
| int a_qspec[LDAC_MAXLSU]; |
| int a_rspec[LDAC_MAXLSU]; |
| AB *p_ab; |
| ACSUB *p_acsub; |
| }; |
| |
| /* Audio Block (AB) Structure */ |
| struct _audio_block_ldac { |
| int blk_type; |
| int blk_nchs; |
| int nbands; |
| int nqus; |
| int grad_mode; |
| int grad_qu_l; |
| int grad_qu_h; |
| int grad_os_l; |
| int grad_os_h; |
| int a_grad[LDAC_MAXGRADQU]; |
| int nadjqus; |
| int abc_status; |
| int nbits_ab; |
| int nbits_band; |
| int nbits_grad; |
| int nbits_scfc; |
| int nbits_spec; |
| int nbits_avail; |
| int nbits_used; |
| int *p_smplrate_id; |
| int *p_error_code; |
| AC *ap_ac[2]; |
| }; |
| |
| /* Sound Frame Structure */ |
| struct _sfinfo_ldac { |
| CFG cfg; |
| AB *p_ab; |
| AC *ap_ac[LDAC_MAXNCH]; |
| char *p_mempos; |
| int error_code; |
| }; |
| |
| /* LDAC Handle */ |
| typedef struct _handle_ldac_struct { |
| int nlnn; |
| int nbands; |
| int grad_mode; |
| int grad_qu_l; |
| int grad_qu_h; |
| int grad_os_l; |
| int grad_os_h; |
| int abc_status; |
| int error_code; |
| SFINFO sfinfo; |
| } HANDLE_LDAC_STRUCT; |
| |
| /* Huffman Codeword */ |
| typedef struct { |
| unsigned char word; |
| unsigned char len; |
| } HC; |
| |
| /* Huffman Encoding Structure */ |
| typedef struct _hcenc_ldac HCENC; |
| struct _hcenc_ldac { |
| const HC *p_tbl; |
| unsigned char ncodes; |
| unsigned char wl; |
| unsigned char mask; |
| }; |
| |
| |
| /******************************************************************************* |
| Function Declarations |
| *******************************************************************************/ |
| #define npow2_ldac(n) (1 << (n)) |
| #define min_ldac(a, b) (((a)<(b)) ? (a) : (b)) |
| #define max_ldac(a, b) (((a)>(b)) ? (a) : (b)) |
| |
| /* Get Huffman Codeword Property */ |
| #define hc_len_ldac(p) ((p)->len) |
| #define hc_word_ldac(p) ((p)->word) |
| |
| /* Convert a Signed Number with nbits to a Signed Integer */ |
| #define bs_to_int_ldac(bs, nbits) (((bs)&(0x1<<((nbits)-1))) ? ((bs)|((~0x0)<<(nbits))) : bs) |
| |
| #ifdef _32BIT_FIXED_POINT |
| #include "fixp_ldac.h" |
| #endif /* _32BIT_FIXED_POINT */ |
| #include "proto_ldac.h" |
| |
| |
| #endif /* _LDAC_H */ |
| |
